本文从笔者几年的化学教学经验中,总结出让学生自由发挥想象的好处,以学生为主体,不但活跃了班级气氛,而且发展学生求异和发散思维,创造思维等方面都是有益的,最重要的是通过实验设计能提高学生解决简单化学问题的能力。 This article summarizes the benefits of letting students play their imagination freely from the author’s years of experience in chemistry teaching. Taking students as the main body, not only active the classroom atmosphere, but also developing students’ seeking differences and divergent thinking, creating thinking and so on are all beneficial. It is important that the experimental design enhances students’ ability to solve simple chemical problems.